Data reflects past performance for Investor Class shares, assumes reinvestment of dividends and capital gains and is no guarantee of future results. Current performance may be higher or lower than data shown. Investment return and principal value fluctuates. Redemption value may be more or less than original cost. Obtain performance data current to the most recent month end. For additional share class information, consult the prospectus.Extraordinary performance is attributable in part to unusually favorable market conditions and may not be repeated or consistently achieved in the future.

The performance of the portfolios is dependent on the performance of their underlying American Century Investments' funds, and will assume the risks associated with these funds. The risks will vary according to each portfolio's asset allocation, and the risk level assigned to each portfolio is intended to reflect the relative short-term price volatility among the funds in each.The value and/or returns of a portfolio will fluctuate with market and economic conditions.

W1

The one-time, initial investment minimum is $2,500, but this minimum will be waived if you make an initial investment of at least $500 and continue to make automatic investments of at least $100 a month until reaching $2,500. If your account balance falls below $2,500 or if you cancel your automatic monthly investment plan prior to reaching $2,500, American Century Investments reserves the right to redeem the shares in the account and send the proceeds to your address of record. Prior to doing so, we will notify you and give you 90 days to meet the minimum or reinstate your automatic monthly investment plan. Please call an investment consultant for more information.

C

Expense ratios provided are the funds' total annual operating expense ratios, gross of any fee waivers or expense reimbursements. Expense ratios are as of the funds' most current prospectus.

You should consider the fund's investment objectives, risks, charges and expenses carefully before you invest. The fund's prospectus or summary prospectus, which can be obtained by calling 1.800.345.2021, contains this and other information about the fund, and should be read carefully before investing. Investments are subject to market risk.